The H-3 rocket has been tapped for JAXA’s Martian Moons eXploration (MMX) and sending resupplies to the International Space Station on the new HTV-X cargo spacecraft. In addition, H-3 is ...
JAXA is now developing the HTV-X, which has a transport capability ... built in 2022 mainly by the United States. The new H-3 rocket will be launched for the first time in fiscal 2020.